In a large sauté pan, heat oil over high heat. When you see a wisp of white smoke, add garlic and sauté until it’s light brown.
Add eggs and serrano chiles and lightly scramble the eggs until they’re barely set, about a minute.
Add shrimp and onion, folding constantly until shrimp turn pink, about 1 minute.
Add the fresh rice noodles, basil leaves, tomatoes and sauce and toss to combine for about 3 minutes. Don’t be scared to scrape the bits off the bottom before they burn. Cook for 1 additional minute until the noodles are cooked and coated well. Serve hot.